Dual flow gas guide apparatus and method
US6877771B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2002 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | May 12, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/2617
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a gas guide for distributing inflation gas into a cushion for an airbag module such as an inflatable curtain module. The gas guide has a first end connected to an inflator, a second end disposed within the cushion, and an intermediate portion between the first and second ends. The second end has a second opening and the intermediate portion has an intermediate opening. The intermediate portion has a small radius bend proximate the intermediate opening such that first and second portions of the inflation gas leave the second opening and the intermediate opening, respectively, to inflate different portions of the cushion. The second end may be constricted such that back pressure in the intermediate portion urges the second portion through the intermediate opening. In addition or in the alternative, a deflector may be used to channel the second portion through the intermediate opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.